JP2013167245A5 - - Google Patents
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- JP2013167245A5 JP2013167245A5 JP2013016276A JP2013016276A JP2013167245A5 JP 2013167245 A5 JP2013167245 A5 JP 2013167245A5 JP 2013016276 A JP2013016276 A JP 2013016276A JP 2013016276 A JP2013016276 A JP 2013016276A JP 2013167245 A5 JP2013167245 A5 JP 2013167245A5
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- pressure
- detected
- threshold
- static pressure
- data
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- 230000003068 static Effects 0.000 description 12
- 102100016338 PTH2 Human genes 0.000 description 3
- 108060006807 PTH2 Proteins 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Description
保炎事象を検出するために、制御ユニット33は、現在検出された絶対圧をデータDから、以前に記憶された絶対圧をメモリ35から取得し、現在検出された圧力を以前に記憶された圧力と比較する。以前に記憶された圧力は、1秒などの所定の時間間隔からの圧力に対応する。換言すれば、比較器24は、現在検出された圧力を、1秒前に検出されてメモリ35に記憶された圧力と比較する。圧力の差が、メモリ35に記憶された所定の閾値を超える場合、制御ユニット33は、保炎事象が起こったと判定し、ノズル24の出力を調整する制御信号C1を調整する。この実施形態では、保炎事象は、突然でかつ顕著な静圧の増加を検出することによって検出される。 In order to detect a flame holding event, the control unit 33 obtains the currently detected absolute pressure from the data D, the previously stored absolute pressure from the memory 35, and the currently detected pressure previously stored. Compare with pressure. The previously stored pressure corresponds to the pressure from a predetermined time interval, such as 1 second. In other words, the comparator 24 compares the currently detected pressure with the pressure detected one second ago and stored in the memory 35. If the pressure difference exceeds a predetermined threshold stored in the memory 35, the control unit 33 determines that a flame holding event has occurred and adjusts the control signal C1 that adjusts the output of the nozzle 24. In this embodiment, the flame holding event is detected by detecting a sudden and significant increase in static pressure.
別の実施形態では、検出信号Dは、絶対圧と温度に関するデータを含む。制御ユニット33は、先に論じたように、現在検出された絶対圧と以前に検出された絶対圧の解析を実施し、その後、制御ユニット33は、検出された保炎事象を確認するために、又は、保炎事象があるとして1以上のノズル24を分離するために温度データを解析する。温度データを解析することは、温度データを、メモリ35に記憶された所定の閾値温度データと、又は、メモリ35に以前に検出された温度データと比較することを含む。この実施形態によれば、静圧センサ27と温度センサ28が共に、保炎事象に矛盾しない特性を検出する場合、制御ユニット33は、保炎事象を正す制御信号C1を調整する。 In another embodiment, the detection signal D includes data regarding absolute pressure and temperature. The control unit 33 performs an analysis of the currently detected absolute pressure and the previously detected absolute pressure, as discussed above, after which the control unit 33 confirms the detected flame holding event. Alternatively, the temperature data is analyzed to isolate one or more nozzles 24 as having a flame holding event. Analyzing the temperature data includes comparing the temperature data with predetermined threshold temperature data stored in the memory 35 or with temperature data previously detected in the memory 35. According to this embodiment, when both the static pressure sensor 27 and the temperature sensor 28 detect a characteristic consistent with the flame holding event, the control unit 33 adjusts the control signal C1 for correcting the flame holding event.
別の実施形態によれば、比較器34は、現在検出された静圧データを、メモリ35に記憶された閾値静圧データと比較する。閾値静圧データは、燃焼器16の運転仕様に従って設定されるプリセット値である。例えば、燃焼器16は、所定の範囲の静圧内で運転されるように設計され、閾値静圧データは、範囲の上限に対応する。 According to another embodiment, the comparator 34 compares the currently detected static pressure data with threshold static pressure data stored in the memory 35. The threshold static pressure data is a preset value set according to the operation specifications of the combustor 16. For example, the combustor 16 is designed to operate within a predetermined range of static pressure, and the threshold static pressure data corresponds to the upper limit of the range.
検出された静圧P3は、閾値静圧PTH2と比較される。異なる実施形態によれば、検出された静圧P3は、現在検出された圧力、又は、図6で述べたように現在検出された圧力と以前に検出された静圧との差に対応する。検出された静圧P3は、オペレーション507にて、閾値圧力PTH2と比較される。代替の実施形態によれば、閾値圧力PTH2は、所定期間における圧力差又は所定の圧力値に対応する閾値のいずれかである。
The detected static pressure P3 is compared with a threshold static pressure PTH2. According to different embodiments, the detected static pressure P3 corresponds to the currently detected pressure or the difference between the currently detected pressure and the previously detected static pressure as described in FIG. The detected static pressure P3 is compared with the threshold pressure PTH2 in operation 507. According to an alternative embodiment, the threshold pressure PTH2 is either a pressure difference in a predetermined period or a threshold corresponding to a predetermined pressure value.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/370,963 US8725384B2 (en) | 2012-02-10 | 2012-02-10 | Detection system and method to detect flame holding event |
US13/370,963 | 2012-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013167245A JP2013167245A (en) | 2013-08-29 |
JP2013167245A5 true JP2013167245A5 (en) | 2017-04-13 |
Family
ID=47915422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013016276A Pending JP2013167245A (en) | 2012-02-10 | 2013-01-31 | Detection system and method to detect flame holding event |
Country Status (5)
Country | Link |
---|---|
US (1) | US8725384B2 (en) |
EP (1) | EP2626629A3 (en) |
JP (1) | JP2013167245A (en) |
CN (1) | CN103244963B (en) |
RU (1) | RU2013105206A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110005189A1 (en) * | 2009-07-08 | 2011-01-13 | General Electric Company | Active Control of Flame Holding and Flashback in Turbine Combustor Fuel Nozzle |
US20150075170A1 (en) * | 2013-09-17 | 2015-03-19 | General Electric Company | Method and system for augmenting the detection reliability of secondary flame detectors in a gas turbine |
CN108167861A (en) * | 2017-12-26 | 2018-06-15 | 江苏旭润机电科技有限公司 | The temperature control system and method for combustion apparatus |
US10371000B1 (en) | 2018-03-23 | 2019-08-06 | Rosemount Aerospace Inc. | Flush-mount combined static pressure and temperature probe |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4744670A (en) * | 1986-05-05 | 1988-05-17 | Honeywell, Inc. | Method and apparatus for monitoring the temperature of the propulsion gas at the inlet to a high-performance turbine wheel |
JPH07208734A (en) * | 1994-01-18 | 1995-08-11 | Hitachi Ltd | Flame detecting system |
JP3685554B2 (en) * | 1996-06-19 | 2005-08-17 | 三洋電機株式会社 | Original mixed surface flame type burner |
JPH1193694A (en) | 1997-09-18 | 1999-04-06 | Toshiba Corp | Gas turbine plant |
JPH11148370A (en) * | 1997-11-17 | 1999-06-02 | Hitachi Ltd | Gas turbine |
US6560967B1 (en) * | 1998-05-29 | 2003-05-13 | Jeffrey Mark Cohen | Method and apparatus for use with a gas fueled combustor |
JP2000130750A (en) * | 1998-10-28 | 2000-05-12 | Hitachi Ltd | Combustion monitoring device |
JP3643499B2 (en) * | 1999-04-01 | 2005-04-27 | 株式会社日立製作所 | Gas turbine combustion apparatus and flame reverse flow detection method thereof |
JP2001108237A (en) * | 1999-10-07 | 2001-04-20 | Hitachi Ltd | Gas turbine combustor |
AU1177100A (en) | 1999-11-10 | 2001-06-06 | Hitachi Limited | Gas turbine equipment and gas turbine cooling method |
US7775052B2 (en) * | 2004-05-07 | 2010-08-17 | Delavan Inc | Active combustion control system for gas turbine engines |
US7966801B2 (en) * | 2006-12-07 | 2011-06-28 | General Electric Company | Apparatus and method for gas turbine active combustion control system |
EP2214146B8 (en) * | 2007-10-26 | 2012-08-08 | Panasonic Corporation | Fire alarm system |
US8434291B2 (en) * | 2009-01-08 | 2013-05-07 | General Electric Company | Systems and methods for detecting a flame in a fuel nozzle of a gas turbine |
US20100180564A1 (en) * | 2009-01-21 | 2010-07-22 | General Electric Company | Systems and Methods for Mitigating a Flashback Condition in a Premixed Combustor |
US7942038B2 (en) | 2009-01-21 | 2011-05-17 | General Electric Company | Systems and methods of monitoring acoustic pressure to detect a flame condition in a gas turbine |
US8112998B2 (en) | 2009-04-17 | 2012-02-14 | General Electric Company | Apparatus and method for cooling a turbine using heat pipes |
US8397515B2 (en) * | 2009-04-30 | 2013-03-19 | General Electric Company | Fuel nozzle flashback detection |
US8260523B2 (en) * | 2009-05-04 | 2012-09-04 | General Electric Company | Method for detecting gas turbine engine flashback |
-
2012
- 2012-02-10 US US13/370,963 patent/US8725384B2/en not_active Expired - Fee Related
-
2013
- 2013-01-31 JP JP2013016276A patent/JP2013167245A/en active Pending
- 2013-02-07 RU RU2013105206/06A patent/RU2013105206A/en not_active Application Discontinuation
- 2013-02-07 CN CN201310049175.7A patent/CN103244963B/en not_active Expired - Fee Related
- 2013-02-08 EP EP13154705.1A patent/EP2626629A3/en not_active Withdrawn
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